someduck3Just to add to this; a-thal is due to a deletion. While b-thal is due to a mutation. If they had a b-thal there would be target cells. a-thal just presents as microcytic & hypochromic.+22019-06-14T20:29:59Z
almondbreezelooks like a-thal can have target cells too.
Individuals with alpha thalassemia trait (-α/-α or --/αα) are asymptomatic, with a normal CBC. The peripheral blood smear typically shows hypochromia, microcytosis, and target cells. (emedicine.medscape.com › article › 955496-clinical)+2020-01-25T10:08:51Z
ergogenic22one parent has 2 deletions on the same gene, the other parent has 1 deletion, and the offspring receives all three. In this question, both parents have alpha 1 deletion+2019-11-18T05:27:41Z
ergogenic22actually its possible that they both have 2 gene deletions, but regardless, a-thalassemia trait is more likely+2019-11-18T05:30:30Z
ergogenic22and someone above said Asian people are cis-2 deletion so the offspring will not receive two deletion from one parent+2019-11-18T05:36:29Z
ergogenic22↑↑ I made a mistake by confusing trans and cis
cis has deletions on the same chromosome and can pass two deletions to off spring, therefore a chance of allowing HbH+2019-11-20T23:56:23Z